Wood’s AC Cortina 12K AirSwitch

Wood’s AC Cortina 12K AirSwitch™

Cools extremely quietly and energy-efficiently with HEPA purification

Wood’s AC Cortina 12K AirSwitch was named ‘Best in Test’ by LB Home 2025. It is a revolution in portable air conditioning and is based on the multiple test-winning Cortina 12K, but is also equipped with the patent-pending AirSwitch™ technology that uses cool outdoor air when the outside temperature is lower than inside. This provides whisper-quiet operation and extremely low energy consumption. At the same time, the air is always purified through a HEPA filter that removes particles and supplies fresh air that lowers CO₂ levels. Everything for the optimal indoor climate and perfect for nights when you want to sleep cool, clean and well, without disturbing noise.

Key features

Best in test

AirSwitch was named ‘Best in Test’ by Ljud & Bild 2025.

Cools up to 35 m²

Cooling capacity 12,000 BTU (3.5 kW).

AirSwitch™ technology

Patent-pending AirSwitch™ technology for extremely quiet and energy-efficient operation.

High airflow

High airflow of 420 m³/h effectively distributes the cool air.

HEPA-filter

Built-in HEPA air purification for cleaner air.

Quiet operation

Three fan modes and low noise level – only 34 dB in AirSwitch mode

Timer function

Cool before you use the room.

Energy class A

Energy efficient.

Up to 6 years warranty

Register and replace the HEPA-filter annually to extend the warranty up to 6 years.

How AirSwitch works:

1. When the outside temperature is higher than the desired temperature, the compressor efficiently cools the room and purifies the air through a HEPA filter.
2. When the outside temperature is lower than the set temperature, AirSwitch automatically switches to bring in the cooler air through the HEPA filter from outside without running the compressor – quieter and more energy efficient.

Experience the difference:

Noise level: Compressor mode: 49–64 dB compared to AirSwitch mode: 34–38 dB
Energy consumption: Compressor mode: 1350 W compared to AirSwitch mode: 56 W

Two smart AirSwitch™ modes for optimal cooling

AirSwitch Auto – Automatically switches between traditional compressor cooling and bringing in cool outdoor air. Perfect for nights when the outdoor temperature drops.
AirSwitch – When the outdoor temperature is lower than indoors, the AC constantly brings in the cool air and efficiently cools the room.

Cleaner and healthier air with HEPA filter

In addition to effective cooling, the Cortina 12K AirSwitch™ air conditioner also offers advanced air purification. The built-in HEPA technology captures dust, pollen, mould spores, bacteria and even small smoke particles, regardless of how you cool. The result is not only a comfortable temperature, but also a cleaner and healthier indoor environment.

Effective comfort at home and in the office

Bedroom: Sleep cool and undisturbed thanks to AirSwitch™ technology, which provides fresh air and extremely quiet operation.
Children’s room: Stable and healthy temperature combined with clean air from the HEPA filter.
Living room: Provides coolness for the whole family during the summer and fresher air all year round.
Office: Improves the working environment and reduces both heat and air pollution.

Smooth and user-friendly

With a digital touch panel, remote control and complete window kit, you have full control over your indoor climate.

Up to 6-year warranty

By registering your AC Cortina 12K AirSwitch at warranty-woods.com and replacing the HEPA filter at least once a year, you can extend the warranty to up to 6 years.

Choose Wood’s AC Cortina 12K AirSwitch™ for quieter, cleaner and more energy-efficient cooling – now named Best in Test 2025 by Ljud & Bild.

How does AirSwitch technology work?

When the outside air is cooler than the set temperature, the compressor switches off automatically and the room is cooled by a quiet fan drawing in the cooler outside air. All air is purified by a HEPA filter. AirSwitch mode reduces energy consumption and is as quiet as a whisper.

Is the Cortina 12K AirSwitch suitable for a flat?

Yes, it effectively cools areas of up to 35 m². It is designed for situations where a fixed installation is impractical or not possible. It requires no wall-mounted outdoor unit and can be used with a window kit.

How large a room can the Cortina 12K AirSwitch handle?

The model is intended for rooms up to 35 m². Actual performance is affected by insulation, ceiling height and how open the room is.

Is the Cortina 12K AirSwitch suitable for use in a bedroom at night?

When the outside air becomes cooler than the set temperature, the compressor switches off and a quiet fan draws in the cooler outside air to cool the room. In AirSwitch mode, it runs quietly and is very energy-efficient.

Does the Cortina 12K AirSwitch have a HEPA filter?

Yes, it does. A HEPA filter purifies all the air, removing pollen and harmful particles. Wood’s Cortina 12K AirSwitch both purifies and cools the air.

Does the Cortina 12K AirSwitch need to be placed near a window?

Yes, just like other portable air conditioning units, it needs to be able to vent warm air via a hose to a window or other opening. With the AirSwitch, you’ll need an additional hose to draw in cool air during the evening and at night.

When is the Palermo 18K a better choice?

The Palermo 18K is more suitable for larger, open-plan rooms and when maximum cooling capacity is important.